diff --git a/.gitmodules b/.gitmodules
index 56edb3651fe..dd47dd8eea6 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "lib/ace"]
 	path = lib/ace
 	url = git://github.com/ajaxorg/ace.git
+[submodule "lib/builder"]
+	path = lib/builder
+	url = git@github.com:eduardolundgren/builder.git
diff --git a/lib/builder b/lib/builder
new file mode 160000
index 00000000000..db65920788f
--- /dev/null
+++ b/lib/builder
@@ -0,0 +1 @@
+Subproject commit db65920788ff1ebaffa05ca7546c0af25b17625b